Profile: Envirotech Systems Pvt. Ltd. is a manufacturer of acoustic products. We are an ISO 9001:2008 certified company. Our noise control & sound proof products include acoustic wall panels, acoustic ceiling tiles, vibration reduction floating floors, acoustic doors, sound proof glass window, acoustic foam, acoustic baffles, acoustic barriers & partitions, and fire retardant fabrics. Wooden acoustic panels are sound absorbing wall panels for the reduction of echo and reverberation. This product has wider sound absorption spectrum, and higher sound absorption co-efficient for low frequency noise. Acoustic barrier walls are commonly used to separate noise sources from the receivers. Installation of acoustic barrier walls can dramatically reduce environmental and equipment noise. An acoustic barrier wall can reduce noise by as much as 20dB-A, depending upon the height and size of the noise source in relation to the location of the noise receiver. Wedge sound absorber has a profiled face, which increases the surface area available for absorption. Wedges can be an effective treatment for flutter echoes and standing waves which can be particularly problematic in rooms with hard parallel walls.